﻿using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class register_step1 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        HttpContext.Current.Session["aa"] = "test";
        if (this.IsPostBack)
        {
            int i = HttpContext.Current.Request.Files.Count;
            Response.Write(i);
        }
    }
}
